摘要
研究地铁施工引起地下管线变形的安全评估方法,分析三点共圆法求算管线变形曲率中测点间距和测量误差的影响,并对其适用性及相关问题进行了探讨;提出利用六次多项式曲线拟合求算管线变形曲率的方法,并结合工程实例阐述其应用。
In this paper the security assessment method of underground pipeline caused by the subway construction was studied, and analysis on the effect of measuring point spacing and measurement error in the pipeline deformation curvature calculation by three-point cyclic method was conducted, its applicability and related issues were discussed. The method of using six polynomial curve fitting to calculate pipeline deformation curvature was proposed, and combining with the engineering examples, its application was discussed.
出处
《中国安全生产科学技术》
CAS
2012年第5期81-86,共6页
Journal of Safety Science and Technology
关键词
地铁施工
地下管线
三点共圆
曲线拟合
安全评估
subway construction
underground pipeline
three-point cyclic
polynomial curve fitting
security assessment
